The chargers look like they'll work together. For example, the Kindle charger will make my pocket camera light up its charging light, but after a minute or so, it goes out, as if the charge has completed. In fact, though, the battery is still dead. The other combinations of cell phone / camera / Kindle chargers are similar.
I dunno, I mix iPhone, iPad, Kindle, Samsung (Nexus) and Griffin chargers all the time, bring only one of them (typically iPad) on the trips, and it works out completely fine. I think that Kindle and Griffin are the slowest though.
